Happy 21st birthday, Baby Got Back: here’s 21 kids that weren’t alive when this song was made (enjoy feeling old!)

Sir-Mix-a-Lot’s dance hit (and karaoke favourite) “Baby Got Back” turns 21 years old today. The catchy one-hit-wonder was released on May 7, 1992 and spent five weeks in the No. 1 position on the Billboard Hot 100. It even managed to snag a few awards, including a Grammy and several spots on hit shows like In Living Color and The Simpsons.

Oh, my god, Becky, if that wasn’t enough to make you feel old, here are 21 stars that weren’t even born when big butts became a mainstream hit. Ready to feel even older? Count how many of these names are completely unfamiliar to you.